About Egophony
| Autor: | Joseph D. Sapira |
|---|---|
| Rok vydání: | 1995 |
| Předmět: |
Lung Diseases
Pulmonary and Respiratory Medicine medicine.medical_specialty Pleural effusion business.industry History 19th Century Egophony History 18th Century Critical Care and Intensive Care Medicine medicine.disease Pleural Effusion Physical diagnosis Pulmonary consolidation Auscultation medicine Humans France Radiology medicine.symptom Cardiology and Cardiovascular Medicine business Respiratory Sounds |
| Zdroj: | Chest. 108:865-867 |
| ISSN: | 0012-3692 |
| DOI: | 10.1378/chest.108.3.865 |
| Popis: | Egophony is a change in timbre (Ee to A) but not pitch or volume. It is due to a decrease in the amplitude and an increase in the frequency [corrected] of the second formant, produced by solid (including compressed lung) interposed between the resonator and the stethoscope head. This explains certain difficulties in learning this valuable but currently neglected sign as well as in understanding certain physiologic false-positive occurrences. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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